Boiler attachment.



J. E. PRIESTER.

BOILER ATTACHMENT.

APPLICATION FILED JUNE 28,1913.

1,114,182, Patented 001;. 20, 1914.

7'0 PUMP Y wwgm arm-m,

THE NORRIS PETERS coy. F'HDTO LITH\I., WASHINGTON D. c.

UNITED STATES PATENT OFFICE.

JOEL ELLIS PRIESTIER, or HARRISBURG, TEXAS.-

BOILER ATTACHMENT.

To all whom it may concern:

Be it known that I, JOEL ELLIS Pnrns'rnn, a citizen of the United States, residing at Harrisburg, inthe county of Harris and State of Texas, have invented new'and use ful. Improvementsin Boiler Attachments, of which the following is a specification.

This invention relates to new and useful improvements in boiler attachments.

The object of the invention is to produce a thermostatic device of simple and improved construction which may be utilized for the purpose of actuating a valve governing the steam supply to the pump or injector.

A further object of the invention is to provide simple and improved means for cooling the thermostatic device so that the operation of the parts actuated by the thermostat will not be extended beyond the reasonable time limit.

WVith these and other ends in view which will readily appear as the nature of the invention is better understood, the same con sists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but thatchanges, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawings, Figure 1 is a front elevation of the device and Fig. 2 is a sectional view taken on the line 88 of Fig. 1.

Corresponding parts in the several figures are denoted by like characters of reference. As illustrated in the figures the upright expansion tube, here designated by 50, and which is connected with the boiler A supports at its upper end a lever K and near its lower end a bracket K having oppo sitely extending arms. The short arm of said lever and bracket are connected together by a link 51. The long arm of the bracket K" supports a lever L", one arm of which, 52, which extends outwardly with respect to the pipe 50 is connected with the long arm of the lever K by a link 53. The link 53 is connected with the arm 52 at a point inter mediate the fulcrum of the lever and the extremity of the arm, and said extremityis Specification of Letters Patent. I Patented O t 20 1914 Application filed June 28,1913. Serial No. 776,318. i

connected by a link 54 with the hentnets A of a valve 56 in a pipe 57 which connects thesteam space of the boiler with the pump or 1n]ector. 1

. upported adjacent tothe expansion'pipe '50 is a water pipe 5.8 terminating at its upper end in a gooseneck 59 adapted to dis charge a current or spray of water directly upon said expansion pipe. The pipe 58 communicates with the discharge of the pump, and saidpipe is provided with a valve 60, the stem of which has an operating crank or handle 61 disposed in the path, of the short arm 62 of the lever L, saidarm being provided with an upwardly extending trip member 63 which directly engages the crank 61.

The parts are constructed, arranged and assembled in such a manner that when the pipe 50 expands longitudinally, owing to the lowering of the water within the boiler and the substitution of steam for water,

within said pipe consequent thereon, the long arm of the lever K will exert a pulling action on the long arm of the lever L, thereby actuating, through the link 54, the valve 56 and serving to admit steam'through the pipe 57 to the pump or injector which is thus set in motion. At the same time the trip memberv 63 will engage the handle 61 I of the valve which is thus opened for the passage of water through the pipe 58, the

water being discharged over on the upper end of the expansion pipe 50 and serving to cool the latter, and thereby interrupting the operation of the pump by causing the res-.

toration of the parts to initial position without being protracted. beyond the desired time limit.

It will be noted that the trip member 63;

of the arm 62 isnormally situated at some little distance from the'valve crank 61, so

i that the latter will not be operated for the admission of water through the pipe 58 until the valve '56 has been opened for some little time, the operation being, of course,

eifected gradually; a suitable spring 64 may be utilized to restore the valve 60 toi low-water level andhaving a closed upper erated by the lever.

2. In a device of the character described,

an upright expansion tube connected at its lower end with a boiler at a predetermined low-Water level and having a a closed upper end, a suitably supported lever adapted to beactuated bythe expansion andcontr-action of. the tube, a Water supply pipe dis' posed in proximity to the expansion tube and adapted to discharge thereon, means operable by .live steam :for injecting Water into the boiler, a pipe connecting' saidmeans with thesteam space of the boiler, a valve on said steam pipe, a valve on the Water pipe, andlmeans connecting the arms ofthe lever with said valvesto open and close the 3. In a device of the class described, a boiler, an upright tubular member, connected With said boiler at a predetermined lowwvate'i" level and constituting an expansion tube, said tubular member belng closed at its upper end, a water supply tube supported in proximity to the expansion tube and; discharging thereon, a self-closing valve on the Water supply'tube, and means operable by the expansion ofthe expaiision tube for. opening the self-closing valve.

In testimony whereof I my signature in'tpresence of two Witnesses.

JOEL ELLIS TPRTES TER.

Witnesses V :R. L. WV AIDE, WV; G; BROWN.

Giifiis' o f tliis patent be obtained 61 ceiitsi each, by addressing the Commissioner of Patents washingtdi llfici 

